CN101245226A - Novel shading rubber belt - Google Patents

Novel shading rubber belt Download PDF

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Publication number
CN101245226A
CN101245226A CNA2008100199005A CN200810019900A CN101245226A CN 101245226 A CN101245226 A CN 101245226A CN A2008100199005 A CNA2008100199005 A CN A2008100199005A CN 200810019900 A CN200810019900 A CN 200810019900A CN 101245226 A CN101245226 A CN 101245226A
Authority
CN
China
Prior art keywords
layer
thickness
rubber belt
tape
black
Prior art date
Application number
CNA2008100199005A
Other languages
Chinese (zh)
Inventor
杨峥
马慧军
Original Assignee
苏州锦富科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州锦富科技有限公司 filed Critical 苏州锦富科技有限公司
Priority to CNA2008100199005A priority Critical patent/CN101245226A/en
Publication of CN101245226A publication Critical patent/CN101245226A/en

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Abstract

The invention relates to a shading belt which comprises a light shielding layer and an adhesive layer, and is characterized in that: the light shielding layer is black polyethylene terephthalate thin layer; the adhesive layer is two sided tape and is composed of a substrate layer and adhesive agent layers at two sides; the adhesive layer is fixedly connected with the surface of the light shielding layer by an adhesive layer on the same surface; the two sided tape is compounded on one side or two sides of the black PET thin layer, thus forming light shielding single side tape or light shielding two sided tape. The thickness of the light shielding tape can be adjusted by choosing PET films with different thicknesses and the two sided tapes with different thicknesses, which avoids the adjustment of the thickness of the light shielding tape by using a large amount of glue, and avoids the glue-spilling phenomenon in die-cutting.

Description

A kind of novel shading rubber belt
Technical field
The present invention relates to a kind of shading rubber belt, be specifically related to a kind of shading rubber belt that is applicable to the back light source light leak that prevents liquid-crystal display etc.
Background technology
Because liquid-crystal display has following plurality of advantages: zero radiation, low power consuming, it is little to dispel the heat; Slim light and handy; Accurately go back original image; Show that character is sharp keen; Picture is stable not to glimmer; Screen adjustment is convenient etc.Therefore the display structure of most digital products of today all adopts liquid-crystal display.But the brightness and contrast of liquid-crystal display is not fine always, because liquid crystal itself is not luminous, needs liquid crystal panel luminotron behind that light source is provided, if shield bad meeting exposure takes place, and will influence the contrast gradient and the brightness of liquid-crystal display.In order to prevent the generation of light leakage phenomena, stationary liquid crystal panel end and prevent that dust from entering is adopted fixedly liquid crystal display of shading rubber belt usually simultaneously.
The making method of existing shading rubber belt is that the one side at least at substrate layer 1 is provided with pigment coloring layer 3, constitute multilayer body (the multilayer body structure as shown in Figure 1), and then glue layer 2 is set in the one side or the two sides of multilayer body, thereby constitute shading single face adhesive tape or shading double sticky tape (as shown in Figure 2), wherein, tackiness agent adopts propylene class glue usually; The concrete grammar that constitutes multilayer body is: utilize coating machine to be coated with glue on base material, and then on glue layer printing color or printing ink as pigmented layer, under the situation of special attention opacifying property, preferred pigmented layer is a black, as tinting material, preferably use for example tinting material of carbon black and so on black.
Under different situations, thickness to shading rubber belt has different requirements, in order to regulate the thickness of shading rubber belt, the method that can adopt is the thickness of regulating base material and the thickness of regulating glue layer, because the thickness specification of base material is limited and fixing, the cost of base material also is higher than glue in addition, therefore, usually utilize the thickness of regulating glue layer to regulate the thickness of shading rubber belt, but when glue layer surpasses certain thickness (generally greater than 0.015mm), in shading rubber belt machine-shaping process, can produce the glue phenomenon of overflowing during cross cutting, thereby influence the quality of module light-emitting area backlight.
Summary of the invention
The object of the invention provides a kind of shading rubber belt, and the thickness of this shading rubber belt can be regulated, and is difficult for producing the glue phenomenon of overflowing during cross cutting.
For achieving the above object, the technical solution used in the present invention is: a kind of shading rubber belt, comprise light shield layer and adhesive layer, described light shield layer is a black polyethylene terephthalate thin film layer, described adhesive layer is a double sticky tape, adhering agent layer by substrate layer and both sides constitutes, and described adhesive layer is fixedly connected on the surface of described light shield layer by the adhering agent layer of one surface.
In the technique scheme, described shading rubber belt is provided with the described double sticky tape of one deck, is compound in a side surface of described black polyethylene terephthalate thin film layer, constitutes shading single face adhesive tape;
Described shading rubber belt is provided with two-layer described double sticky tape, is compound in the both side surface of described black polyethylene terephthalate thin film layer respectively, constitutes the shading double sticky tape.
In the technique scheme, the polyethylene terephthalate film of described black (PET film), be selected from toray (TORAY) X30 series black PET film, its thickness specification has 0.025mm, 0.038mm, 0.050mm, 0.075mm, 0.100mm, 0.125mm, 0.188mm, 0.250mm; Perhaps be selected from the SKC black SB00 Series P ET film of Korea S, its thickness specification has 0.025mm, 0.038mm, 0.050mm, 0.075mm, 0.100mm, 0.125mm, 0.175mm, 0.188mm.
In the technique scheme, this multilayer body as three-decker of described double sticky tape comprises substrate layer and is arranged on adhering agent layer on two faces of substrate layer that its substrate layer can also provide certain physical thickness except providing the certain mechanical strength; Double sticky tape described in the technique scheme can be selected in known commodity double sticky tape, and its thickness range is generally at 0.03mm~0.10mm, for example: Tesa4972 double sticky tape, its thickness are 0.048mm, and its substrate layer is transparent PET film; 3M9019,3M55256 double sticky tape; Ponding #550P5BW or the like.In actual applications, can select the PET film of the double sticky tape of suitable thickness, color, viscous force, intensity, cost and black compound according to final shading rubber belt, for example: select the double sticky tape of white and the shading rubber belt that the compound formation of PET film of black has reflection function for use, select the double sticky tape of black and the strong shading rubber belt of the compound formation light shielding ability of PET film of black for use.
Ultimate principle of the present invention is: double sticky tape, black PET film thickness all have specification separately, thickness according to final shading rubber belt, can select suitable double sticky tape, black PET film, compound formation shading rubber belt, a duplex spread-blade adhesive tape in black PET film then constitutes shading single face adhesive tape, and the duplex spread-blade adhesive tape then constitutes the shading double sticky tape in the two sides of black PET film; Though the present invention does not use independent substrate layer, on the one hand, the substrate layer of double sticky tape can provide certain mechanical strength, keeps the shape of adhesive tape, and on the other hand, the PET film of black not only can shading also can provide the function of substrate layer; And by regulating black PET film and thickness, select the double sticky tape of suitable thickness, avoided using the method that is coated with glue to remove to regulate the thickness of shading rubber belt, avoided using a large amount of glue, thereby the glue phenomenon of overflowing appears when avoiding cross cutting, and the PET thin film layer of use double sticky tape duplex spread-blade adhesive tape and black, need be in the step and the technology of coating glue, technology is simple relatively.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. because black PET film quality is even, and known commodity black PET film has the specification of a series of different thickness, can also regulate the thickness of whole shading rubber belt when guaranteeing good shading performance;
2. because shading rubber belt is a PET thin film layer by duplex spread-blade adhesive tape and black forms, the thickness of double sticky tape also has different specifications, select the double sticky tape and the black PET film of suitable thickness, can reach the thickness that shading rubber belt will reach, can avoid using a large amount of glue to regulate thickness, thereby avoid when cross cutting, producing the glue phenomenon of overflowing.
Description of drawings
The multilayer body synoptic diagram of accompanying drawing 1 existing shading rubber belt
The synoptic diagram of accompanying drawing 2 existing shading double sticky tapes
Shading double sticky tape synoptic diagram among accompanying drawing 3 embodiment one, the embodiment three
The synoptic diagram of shading single face adhesive tape among accompanying drawing 4 embodiment two
Wherein: 1, substrate layer; 2, glue layer; 3, pigment coloring layer; 6, adhesive layer; 7, light shield layer; 8, the substrate layer of double sticky tape; 9, the adhering agent layer of double sticky tape.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: shown in accompanying drawing 3, a kind of thickness is the shading double sticky tape of 0.15mm, comprise light shield layer 7 and adhesive layer 6, described light shield layer 7 is selected the PET film of black for use, its thickness is 0.05mm (toray X30), adhesive layer 6 is selected double sticky tape for use, double sticky tape is made of the adhering agent layer 9 of substrate layer 8 and both sides, its thickness is 0.05mm (TESA4972), the compound separately one deck double faced adhesive tape of heating condition belt is passed through on two sides at the PET of black film, thereby constitutes the shading rubber belt that a kind of thickness is 0.15mm.
Embodiment two: shown in accompanying drawing 4, a kind of thickness is the single face shading rubber belt that 0.13mm has reflection function, light shield layer is selected the PET film of black for use, its thickness is 0.075mm (toray X30), adhesive layer is selected double sticky tape for use, and its thickness is 0.055mm (ponding #550P5BW), and this adhesive tape has the white reflection layer, in the one side of the PET of black film by the compound one deck double faced adhesive tape of heating condition belt, thereby the shading single face adhesive tape that to constitute a kind of thickness with reflection function be 0.13mm.
Embodiment three: shown in accompanying drawing 3, a kind of thickness is the shading double sticky tape of 0.085mm, light shield layer is selected the PET film of black for use, its thickness is 0.025mm (toray X30), adhesive layer is selected double sticky tape for use, its thickness is 0.03mm (3M9019), passes through the compound separately one deck double faced adhesive tape of heating condition belt on the two sides of the PET of black film, thereby constitutes the shading rubber belt that a kind of thickness is 0.085mm.

Claims (3)

1. novel shading rubber belt, comprise light shield layer and adhesive layer, it is characterized in that: described light shield layer is a black polyethylene terephthalate thin film layer, described adhesive layer is a double sticky tape, adhering agent layer by substrate layer and both sides constitutes, and described adhesive layer is fixedly connected on the surface of described light shield layer by the adhering agent layer of one surface.
2. shading rubber belt according to claim 1 is characterized in that: be provided with the described double sticky tape of one deck, be compound in a side surface of described black polyethylene terephthalate thin film layer, constitute shading single face adhesive tape.
3. shading rubber belt according to claim 1 is characterized in that: be provided with two-layer described double sticky tape, be compound in the both side surface of described black polyethylene terephthalate thin film layer respectively, constitute the shading double sticky tape.
CNA2008100199005A 2008-03-21 2008-03-21 Novel shading rubber belt CN101245226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100199005A CN101245226A (en) 2008-03-21 2008-03-21 Novel shading rubber belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100199005A CN101245226A (en) 2008-03-21 2008-03-21 Novel shading rubber belt

Publications (1)

Publication Number Publication Date
CN101245226A true CN101245226A (en) 2008-08-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100199005A CN101245226A (en) 2008-03-21 2008-03-21 Novel shading rubber belt

Country Status (1)

Country Link
CN (1) CN101245226A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102270412A (en) * 2010-12-30 2011-12-07 友达光电股份有限公司 Display
US8274623B2 (en) 2009-06-16 2012-09-25 Au Optronics Corporation Liquid crystal display and method for assembling the same
CN101445708B (en) * 2008-12-23 2012-10-03 友达光电股份有限公司 Double sticky tape and liquid crystal display module using same
CN102766418A (en) * 2012-08-09 2012-11-07 昆山宏凌电子有限公司 Shading singleside glue
CN103059755A (en) * 2011-10-20 2013-04-24 日东电工株式会社 Adhesive tape
CN105700229A (en) * 2014-12-10 2016-06-22 乐金显示有限公司 Backlight unit and liquid crystal display device including the same
CN107340652A (en) * 2017-09-11 2017-11-10 京东方科技集团股份有限公司 Packaging plastic, backlight module and display device
CN108084903A (en) * 2017-12-16 2018-05-29 宁波六麦新材料科技有限公司 A kind of two-sided shading rubber belt of high-low temperature resistant of high purification anti-pollution

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101445708B (en) * 2008-12-23 2012-10-03 友达光电股份有限公司 Double sticky tape and liquid crystal display module using same
US8274623B2 (en) 2009-06-16 2012-09-25 Au Optronics Corporation Liquid crystal display and method for assembling the same
CN102270412A (en) * 2010-12-30 2011-12-07 友达光电股份有限公司 Display
US8686973B2 (en) 2010-12-30 2014-04-01 Au Optronics Corp. Display with improved bendable cover having light transmissive area
US9007328B2 (en) 2010-12-30 2015-04-14 Au Optronics Corp. Display with improved bendable cover having light transmissive area
CN103059755A (en) * 2011-10-20 2013-04-24 日东电工株式会社 Adhesive tape
CN102766418A (en) * 2012-08-09 2012-11-07 昆山宏凌电子有限公司 Shading singleside glue
CN105700229A (en) * 2014-12-10 2016-06-22 乐金显示有限公司 Backlight unit and liquid crystal display device including the same
CN105700229B (en) * 2014-12-10 2019-03-26 乐金显示有限公司 Back light unit and liquid crystal display device including the back light unit
CN107340652A (en) * 2017-09-11 2017-11-10 京东方科技集团股份有限公司 Packaging plastic, backlight module and display device
CN108084903A (en) * 2017-12-16 2018-05-29 宁波六麦新材料科技有限公司 A kind of two-sided shading rubber belt of high-low temperature resistant of high purification anti-pollution

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Open date: 20080820

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